OUR ALUMINUM V BAND FLANGE ASSEMBLIES INCLUDE ONE CLAMP, ONE MALE FLANGE WITH AN O-RING AND ONE FEMALE FLANGE. THEY ARE DESIGNED TO SELF CENTER THEMSELVES TO ENSURE A LEAK FREE SEAL EVERY TIME. DON'T BE FOOLED BY CHEAP KNOCKS THAT ARE HARD TO ALIGN AND LEAK. V-BAND VBAND V BAND EXHAUST INTERCOOLER PIPING